Update August meetup details, permanent location, and sync wiki

- Establish West Fargo Public Library as standard meeting location
- Sync August 2026 Gridfinity challenge and September upcoming challenge
- Update Copilot instructions with location and date sync guidelines
- Update submodule wiki-fargo3d

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

challenges/November-2025/readme.md

@@ -25,7 +25,7 @@ This challenge focuses on:
 - **Nozzle Requirement**: Must use a 0.4mm nozzle (REQUIRED)
 - **Estimated Filament Usage**: Approximately 3 grams (for reference only)
 - **Model Specification**:
-  - **Dimensions**: Exactly 25mm × 25mm × 25mm cube (REQUIRED)
+  - **Dimensions**: Exactly 25mm x 25mm x 25mm cube (REQUIRED)
   - **Wall Count**: Exactly 2 walls (no more, no less) (REQUIRED)
   - **Top Layers**: 0 (no top surface)
   - **Bottom Layers**: Standard (as needed for proper adhesion)
@@ -95,7 +95,7 @@ This challenge focuses on:
 **Download the pre-configured cube:**
 
 - **File Location**: [Challenge Files/November2025/Cube.3mf](../../Challenge%20Files/November2025/Cube.3mf)
-- **Pre-configured**: Already set to 25mm × 25mm × 25mm with 2 walls and no top
+- **Pre-configured**: Already set to 25mm x 25mm x 25mm with 2 walls and no top
 - **Ready to slice**: Import into your slicer and adjust settings for your printer
 
 ### Creating the Cube Model from Scratch
@@ -120,10 +120,10 @@ This challenge focuses on:
 
 #### Alternative Methods
 
-- **Fusion 360**: Create square sketch (25mm × 25mm), extrude to 25mm height
-- **Tinkercad**: Use cube shape, adjust dimensions to 25mm × 25mm × 25mm
+- **Fusion 360**: Create square sketch (25mm x 25mm), extrude to 25mm height
+- **Tinkercad**: Use cube shape, adjust dimensions to 25mm x 25mm x 25mm
 - **FreeCAD**: Create cube with specified dimensions
-- **Any CAD Software**: Simple cube 25mm × 25mm × 25mm
+- **Any CAD Software**: Simple cube 25mm x 25mm x 25mm
 - **Use provided file**: Open `Challenge Files/November2025/Cube.3mf` directly
 
 ### Basic Cube Setup
@@ -132,11 +132,11 @@ This challenge focuses on:
 
 1. **Create or Download Model**:
    - Use the provided `Challenge Files/November2025/Cube.3mf` file
-   - Or create using any CAD software (25mm × 25mm × 25mm cube)
+   - Or create using any CAD software (25mm x 25mm x 25mm cube)
    - Or use the Bambu Studio/Orca Slicer primitive steps above
 
 2. **Slicer Settings** (Critical):
-   - **Dimensions**: 25mm × 25mm × 25mm
+   - **Dimensions**: 25mm x 25mm x 25mm
    - **Wall Count/Perimeters**: 2
    - **Top Layers**: 0
    - **Bottom Layers**: 3-5 (as needed)